Run results for: Two methods of adjusting placeholders and classes for required inputs and associated labels

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.90 Safari/537.36

Browser: Chrome 54

Operating system: Linux

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
Old style	1700.6 Ops/sec
New style	1832.6 Ops/sec

HTML Preparation code:

<div class="form-item">
  <label></label>
  <input type="text" class="required"/>
</div>
<div class="form-item">
  <label></label>
  <input type="checkbox" class="required"/>
</div>
<div class="form-item">
  <label></label>
  <input type="text"/>
</div>
<div class="form-item">
  <label></label>
  <input type="checkbox"/>
</div>

Tests:

Old style
$(':input') .prop('placeholder', '') .closest('.form-item') .find('label') .removeClass('cic_requiredstar') .end() .end() .filter('.required') .prop('placeholder', 'required') .closest('.form-item') .find('label') .addClass('cic_requiredstar') .end() .end() .end() .filter('[data-placeholder]') .prop('placeholder', function () { return $(this).data('placeholder'); }) .end();
New style
$(':input') .closest('.form-item') .find('label') .removeClass('cic_requiredstar') .end() .end() .filter('[type="text"]') .prop('placeholder', '') .filter('.required') .prop('placeholder', 'required') .end() .end() .filter('.required') .closest('.form-item') .find('label') .addClass('cic_requiredstar') .end() .end() .end();
New v2
var $inputs = $(':input'); $inputs .closest('.form-item') .find('label') .removeClass('cic_requiredstar'); $inputs.filter('[type="text"]') .prop('placeholder', '') .filter('.required') .prop('placeholder', 'required'); $inputs.filter('.required') .closest('.form-item') .find('label') .addClass('cic_requiredstar');

Run results for: Two methods of adjusting placeholders and classes for required inputs and associated labels

Old style

New style

New v2